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Cooling System Optimization for Euro4 - EPA/02 Heavy Duty Trucks
Technical Paper
2000-01-0964
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Euro4 and EPA/02 emission regulations for the European and North American Heavy Duty truck market will require development of high efficiency, low pollution diesel engines. Informations received from main engine, truck manufacturers and literature surveys performed during the past two years shows that several technical solutions are being evaluated in order to reach the required emission levels.
These technical solutions can be divided into 3 main groups:
- 1Further optimization of fuel combustion including: increase of air to fuel ratio, further retardation of fuel injection timing.
- 2Cooled EGR including: high recycled exhaust gas ratios, short EGR loop, compressed and aftercooled EGR.
- 3Exhaust gas aftertreatment including: de-NOx catalysts, particle traps, particle afterburning.
Different technical solutions will have different impacts on the heat rejection requirements and consequently on the layout and costs of the future cooling systems.
This paper describes the study performed by Valeo Advanced Cooling System Development Team, targeting evaluation of the future cooling systems for Heavy Duty commercial vehicles, 2002 and beyond.
Following works will be described:
- Review of EPA/02-Euro4 emission regulations
- Evaluation of EPA/02 - Euro 4 engine development impact on cooling system heat rejection and durability requirements
- Analysis of possible technical solutions for the cooling system
- Description of the computation methodology used for system computation
- Study case with a simulation approach for evaluation of a new cooling system concept
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Citation
Valaszkai, L. and Jouannet, B., "Cooling System Optimization for Euro4 - EPA/02 Heavy Duty Trucks," SAE Technical Paper 2000-01-0964, 2000, https://doi.org/10.4271/2000-01-0964.Also In
SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V109-6; Published: 2001-09-15
Number: V109-6; Published: 2001-09-15
References
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- Blissett M.C Austin K. “ Engine thermal management comparison between predicted and measured results ” Flowmaster International Limited Towcester, UK
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- Kohketsu S. Mori K. Sakai K. Hakozaki T. “EGR technologies for a turbochargerd and intercooled heavy duty diesel engine” SAE 970340